Nondrip siphon and agitator



S p 1932. F. a. cooNEY 1,876,860

NONDRIP SIPHON AND AGITATOR Filed Dec. 14, 1929 amma INVENTOR M ATTORNEY Patented Sept. 13, 1932 UNITED STATES PATENT OFFICE FRANK B. COONEY, OF SANDUSKY, OHIO, ASSIGNOR TO THE AMERICAN CRAYON COM- PANY, OF SANDUSKY, OHIO, A CORPORATIQN OF OHIO v I NONDRIP srrnon Am aeiraron a lication fiieafnecemberm, 1929. Serial No. 414,074.

This invention relates to a non-drip siphon and agitator, its object being the provision of an. improved pp'flratus of this "character which willbe simple in construction and highly eflicient in operatioinand more'particularly one which will insure cleanliness in operation. I

An object of theinvention is the provisionin association with anair pressure tube of an air pressure control vent-tube which .is

' normally open to relieve-air pressure in the siphon bottle and thereby prevent discharge of the liquid either. by accident or through curiosity, and which-is so arranged that it can be easily and conveniently closed by the forefingeror thumb -when operating the air compressor bulb, the arrangementin this regard'being such that when the-vent tube is closed the liquid can; be freely transferred through the delivery tube, and when the clcs ingfinger or thumb is removed theliquid under transfer and within the delivery tube will be instantly siphoned back so as to prevent any drip from the discharge end ofthe delivery tube. y

An otherobject of the invention is the pro- 7 vision of an apparatus having a delivery tube cleanliness in operation.

which extends to a point closely adjacent the bottom of the siphon bottle to avoid the necessity of inclining the. siphon bottle when liquid to be transferred, and at the same time to provide means whereby thedelivery tube maybe employed as an agitator especially useful for liquids which show aisediment and require agitation in order to secure homo: geneous distribution and uniform strength before transference. r

The apparatus of the present invention is especially useful in schools, offices, and other places where there is frequent necessity for replenishing the supply of small ink bottles and stands, although the apparatus is not confined to such particular use, as it may be used for the transfer of any kind of liquid and particularly where it is desired. to effect the transfer Without drip or waste. and with Other objectsand aspects of the will 'appeanhereinafter. I The invention consists in the "improved invention non-drip siphon and agitator and in the con,-

struction and relative arrangement or arrangements ofparts, as will be hereinafter more fully described and subsequently incor porated in the subjoined claim.

' Theinvention will be best understood by referring to the accompanying drawing, which forms a material part of; this specifie cation, and in which 'Figure 1 representsan elevational view showing the apparatus, applied to a siphon bottle 2 represents a vertical fragmentary sectional view of the apparatus, detached from the siphon scale;and

Fig. 3represents a plan and section, on the line 3 3 of Fig. 2.

bottle and shown on a larger The p'referredform of construction, as illustrated in the accompanying drawing, comprises a stopper 10 made preferably of flexible rubber and of a size and shape to have relatively tight fit in the neck of the siphon bottle with which it is intended to be used. In Fig. 1 the stopper 10 is illustrated as fitted in the neck of the siphon bottle 11.

According to my invention, the stopper 10 carries. three separate tubes, 12, 13 and 14; each made preferably'of hard rubber and ex tending well above the top surfaceof the stopper. of reference may be referred to as the pressure tube, is madewith alaterally curved top end 15. Detachably associated with the curved end 15 is an air compressor or bulb 16, the mode of attachment as herein illustrated consisting in providing the compressor with a hollow stem or nipple 17 adapted to be'inserted in the open top end 15 and to DO have frictional engagement with the interior thereof. The tube 13 comprises a finger enhe tube 12, which for-convenience gaging vent tube, its upper portion l8'being bent laterally in the same direction as the upper end portion 15 and being in close proximity thereto, so that its open end 18 may be instantly closed and opened by a finger of the hand engaging with and operating the air compressor 16. The third part or tube 14' comprises the'liquid delivery tube, the upper portion 19 of this tube being curved laterally and sufliciently to constitute a discharging nozzle for the liquid. It will be observed that the nozzle portion 19 is curved laterally in a direction away from the upper portions of the other tubes 12 and 13, so that the liquid will be discharged at the side of the siphon bottle opposite. to the projection of the laterally curved upper portions 15 and 18 where space is required for ready and convenient manual operation.

In the present e'xemplification, each of the tubes 12, 13 and 14 extends downwardly through the stopper, the tubes 12 and 13 terminating just below the lower surface of the stopper and above the level 20 for the liquid within the siphon bottle. The delivery tube lt extends well below the stopper, its length being such that its open lower end 21 will come closely adjacent to the bottom 22 of the siphon bottle. In order to suit bottles differing in height, the delivery tube 14 is made so as to be adjustable in the direction of its length. To this end the lower part 21 of this tube is made separate from the upper part thereof and these two parts are connected by a coupling tube 23. The mode of connecting these parts consists preferably in providing them with cooperating screw threads so that the coupling tube 23 may be screw-threaded upon the upper part, while the lower part 21 is screw-threaded into the coupling tube as shown. By this arrangement, the length of the delivery tube below the stoppermay be varied by turning the lower part 21, and further by turning the coupling tube 23 if it be necessary to do so in order to effect the desired lengthwise adjustment to compensate for the length of the siphon bottle and bring the lower open end of the part 21 in close adjacency to the bottom 22 of the siphon bottle.

In the operation of the apparatus, when it is desired to discharge liquid from the siphon bottle, the air compressor 16 is com pressed and simultaneous with this action the forefinger or thumb is placed firmly over the open top end 18 of the vent tube. By these conjoint operations, air is introduced under pressure into the top of the bottle upon the surface of the liquid therein contained, and since this compressed air cannot escape through the vent tube, liquid from adjacent the bottom of the bottle is forced upwardly through the delivery tube and discharged through the nozzle end 19. In this way, pressure upon the aircompressor with the vent tube closed by the finger will result in a steady discharge of the liquid without tilting or inclining the siphon bottle. By removing the finger from the open end 18 of the vent tube,

\ air pressure upon the liquid is instantly relieved so that the How from the nozzle will instantly cease, and with the further result that the liquid under discharge within the delivery tube and nozzle portion 19 thereof will be instantly siphoned back without drip from the down-turned end of the nozzle portion 19.

As has been previously pointed out, the air compressor or bulb 16 is detachably engaged with the upper end 15 of the pressure tube 12. Now the interior delivery end of the nozzle portion 19 is of substantially the same size as the interior of the end 15, so that the nipple 17 can be fitted into the end of the nozzle portion 19. The object of this provision is to enable the air compressor or bulb 16 to be detached from the pressure tube and attached totop end, there can be no accidental discharge of the liquid from the siphon bottle; for liquid can be discharged only when the finger is firmly placed upon the open top end of the vent tube simultaneously with the operation of the air compressor or bulb. -Mischievous trifling, therefore, with the air compressor by small children will not result in a discharge of theliquid. By the apparatus of my invention, ink can be siphoned into small bottles or stands without danger of overfill ing and with thorough cleanliness, since there is no drip from the nozzle portion. By making all of the parts from hard rubber no corrosion results where iron gall inks are used;

and moreover, no chemical change can take place in the ink so as to render it unfit for use, as is frequently the case where the ink is permitted to contact with soft rubber.

It will be apparent from the foregoing that I have produced a novel and useful construction of non-drip siphon and agitator and one which embodies the features of advantage enumerated in the statement of the invention and the above description, and while I have, in the present instance, shown and described a preferred embodiment thereof as reduced to practice, it is to be understood that the apparatus is susceptible of modification in various particulars without departing from the spirit orscope of my invention or sacrificingv any of its advantages.

I claim:

A liquid delivering device for bottles comprising a stopper adapted to be fitted into the bottle neck, a delivery tube for the liquid extending through said stopper having a laterally and downwardly curved outer discharge end, a pair of additional tubes extending through said stopper and havng their outer ends laterally curved, a hand operated air compresser having means for interchangeable connection with said curved end of one of the latter tubes and the outer end of the delivery tube to force air under pressure into the bottle, and the other of said last named tubes constituting an airvent having an unobstructed bore, and the outer open end thereof being positioned above and substantially in the same vertical plane with the air inlet tube for the convenient application of the thumb to said open end of the vent tube While the liquid is being delivered by the operation of the air compresser through said delivery tube.

In testimony that I claim the foregoing as my invention, I have signed my name hereto.

7 FRANK B. OOONEY; V 

